Average Co-Inventor Count = 8.22
ph-index = 3
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Nippon Steel Corporation (3 from 3,542 patents)
2. Mitsubishi Jukogyo Kabushiki Kaisha (2 from 1,326 patents)
3 patents:
1. 5889810 - Apparatus for preheating and melting of scrap and process for the same
2. 5368088 - Apparatus of continuously casting a metal sheet
3. 5103895 - Method and apparatus of continuously casting a metal sheet